package com.android.calculator.operate;

/**
 * Created by Aaron on 2017/9/13.
 */

public abstract class OperateBase {
    public double numbleOne;
    public double numbleTwo;
    public String symbol; // 操作符

    public abstract void initNumber(String numStr) ;


    /**
     * 返回结果
     * @return
     */
    public abstract double getResult();
}
